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Description of ASTM-B456 2011ASTM B456 - 11e1Standard Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus ChromiumActive Standard ASTM B456 | Developed by Subcommittee: B08.05 Book of Standards Volume: 02.05 ASTM B456Abstract This specification establishes the requirements for several types and grades of electrodeposited copper plus nickel plus chromium and nickel plus chromium coatings on steel, copper, copper alloys, Type 300 and 400 series stainless steels, aluminum, aluminum alloys, and zinc alloys for application where both appearance and protection of the basis metal against corrosion are important. This specification does not cover plating on plastics. Each coating shall be designated a classification code, which comprises of the following numbers and symbols: service condition number, which indicates the severity of exposure for which the coating is intended; coating classification number, which contains the chemical symbol of each metallic element that comprises the basis metal, or the designated AISI number in the case of stainless steels, and their corresponding thickness; and symbols for expressing the type of coating. Products shall be sampled and inspected accordingly for visual defects, thickness, adhesion, elongation, ductility, corrosion, sulfur content, density, and discontinuities. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. 1. Scope 1.1 This specification covers requirements for several types and grades of electrodeposited copper plus nickel plus chromium or nickel plus chromium coatings on steel, nickel plus chromium coatings on copper and copper alloys, nickel plus chromium coatings on Type 300 and 400 series stainless steel and copper plus nickel plus chromium coatings on aluminum and its alloys and zinc alloys for applications where both appearance and protection of the basis metal against corrosion are important. Five grades of coatings are provided to correspond with the service conditions under which each is expected to provide satisfactory performance: namely, extended very severe, very severe, severe, moderate, and mild. Definitions and typical examples of these service conditions are provided in Appendix X1. 1.2 This specification does not cover the requirements for the plating on plastics, see Specification B604 . 1.3 The following hazards caveat pertains only to the test methods portions, Appendix X2, Appendix X3, Appendix X4, and Appendix X5 of this specification: This standard does not purport to address all of safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards B183 Practice for Preparation of Low-Carbon Steel for Electroplating B242 Guide for Preparation of High-Carbon Steel for Electroplating B252 Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings B253 Guide for Preparation of Aluminum Alloys for Electroplating B254 Practice for Preparation of and Electroplating on Stainless Steel B281 Practice for Preparation of Copper and Copper-Base Alloys for Electroplating and Conversion Coatings B320 Practice for Preparation of Iron Castings for Electroplating B368 Test Method for Copper-Accelerated Acetic Acid-Salt Spray (Fog) Testing (CASS Test) B380 Test Method for Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section B489 Practice for Bend Test for Ductility of Electrodeposited and Autocatalytically Deposited Metal Coatings on Metals B490 Practice for Micrometer Bend Test for Ductility of Electrodeposits B499 Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals B504 Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method B530 Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates B537 Practice for Rating of Electroplated Panels Subjected to Atmospheric Exposure B568 Test Method for Measurement of Coating Thickness by X-Ray Spectrometry B571 Practice for Qualitative Adhesion Testing of Metallic Coatings B602 Test Method for Attribute Sampling of Metallic and Inorganic Coatings B604 Specification for Decorative Electroplated Coatings of Copper Plus Nickel Plus Chromium on Plastics B659 Guide for Measuring Thickness of Metallic and Inorganic Coatings B697 Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings B762 Test Method of Variables Sampling of Metallic and Inorganic Coatings B764 Test Method for Simultaneous Thickness and Electrode Potential Determination of Individual Layers in Multilayer Nickel Deposit (STEP Test) D1193 Specification for Reagent Water D3951 Practice for Commercial Packaging E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials G85 Practice for Modified Salt Spray (Fog) Testing Keywords corrosion; decorative; electrodeposited chromium; electrodeposited copper; electrodeposited nickel: Electrodeposited Cu coatings--specifications; Electrodeposited Ni coatings--specifications; Nickel-chromium alloys--specifications; Quenching; ICS Code ICS Number Code 25.220.40 (Metallic coatings) DOI: 10.1520/B0456-11E01 ASTM International is a member of CrossRef. ASTM B456This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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